How do I resize a LVM volume group?

How do I resize a LVM volume group?

Extend LVM manually

  1. Extend the physical drive partition: sudo fdisk /dev/vda – Enter the fdisk tool to modify /dev/vda.
  2. Modify (extend) the LVM: Tell LVM the physical partition size has changed: sudo pvresize /dev/vda1.
  3. Resize the file system: sudo resize2fs /dev/COMPbase-vg/root.

How do I increase the size of a group volume?

Extend the Logical Volume Extend the LV with the lvextend command. The lvextend command allows you to extend the size of the Logical Volume from the Volume Group. Figure 8: Use the lvextend command to extend the LV. [root@redhat-sysadmin ~]# lvextend -l +100%FREE /dev/centos/root.

How can I resize LVM without losing data?

BEFORE RUNNING THOSE INSTRUCTIONS, MAKE SURE TO BACKUP YOU IMPORTANT DATA.

  1. boot on a live CD/DVD (Linux or GParted Live)
  2. make sure your root partition is not mounted umount /dev/[partition-name]
  3. make sure LVM is up (probably not required, at least on GParted Live) vgchange -ay.

How do I shrink my LVM volume?

How to Shrink an LVM Volume Safely on Linux

  1. Step 1: First take a full backup of your filesystem.
  2. Step 2:Start and force a filesystem check.
  3. Step 3:Resize your filesystem before resize your Logical Volume.
  4. Step 4: Reduce LVM size.
  5. Step 5: Re-run resize2fs.

How increase LVM size in Linux?

How to Extend LVM Partition with lvextend command in Linux

  1. Step:1 Type ‘ df -h’ command to list the file system.
  2. Step:2 Now check whether free space is available space in the volume group.
  3. Step:3 Use lvextend command to increase the size.
  4. Step:3 Run the resize2fs command.
  5. Step:4 Use df command and verify /home size .

How do I resize a logical volume in Linux?

In short, here are the steps to extend the size of your logical volume:

  1. Create new partition on harddisk.
  2. Add the partition you just created as a physical volume.
  3. Add the new physical volume to the volume group.
  4. Assign space from the volume group to the logical volume.
  5. Resize the filesystem.

How do I resize a lvm2 PV partition?

What you can to is…

  1. Resize the VDI and partition, like you did before.
  2. Resize the physical volume with the command: pvresize /dev/sda2.
  3. Resize the logical volume and filesystem in one go with the command: lvresize -L +50G /dev/YOUR_VOLUME_GROUP_NAME/vg_centos6.

Does Lvreduce destroy data?

Shrinking a logical volume is likely to destroy any filesystem located on that volume if you do not make appropriate preparations. If you want to preserve existing files then you will need to: reduce the size of the filesystem by the required amount, then.

What is a major advantage of using Logical Volume Management LVM?

The main advantages of LVM are increased abstraction, flexibility, and control. Logical volumes can have meaningful names like “databases” or “root-backup”. Volumes can be resized dynamically as space requirements change and migrated between physical devices within the pool on a running system or exported easily.

How do you shrink a volume group?